Island



Patented July 29, 1919.

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:EN VEN TUE-E AT I DE; LEY.

F 0 JAQUES, JR

METHOD 0F MAK|NG CASTELLANO-NUTS.

APPLICATION FI'LED 1AN.9.1919.

fam/04 --mlm-lill- FERNANDO OSCAR JAQUES, JB., 0F PROVIDENCE, RHODE ISLAND, ASSIGNOR 0F ONE- HALF TO HAROLD CALDWELL PECKHAM, OF CRANSTON, RHODE ISLAND.

METHOD 0F MAENGWCASTELLATED NUTS.

Lainate.

To all whom t may concern Be it known that I, FERNANDO OSCAR JAQUF, Jr., a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Methods of Making Castellated Nuts, of

`which the following is a specification.

In previous methods of making castellated nuts the castellated nuts are cut out of bar metal and the castellations are produced or formed on the nut by three or more distinct operations of a cutter across the nut. In

this method of making castellated nuts there` in construction, are manufactured in less time and the cost of manufacturing greatly reduced, and I accomplish the above valuable results, particularly in the first step in my improved method, in which the castellations are formed on the sheet metal blank from which the castellated nut is formed.

My invention consists in the peculiar and novel method of making castellated nuts, as will be more fully set `lorth hereinafter and claimed.

Figure 1 is a face view of the metal blank cut out from sheet metal, first step, showing radial arms on the blank which form the castellations of the completed castellated nut.

Fig. 2 is an edge view of the blank.

Fig. 3 is a vertical sectional view through dies which cup the blank, second step.

Fig. 4 is a vertical sectional view through dies which compress the' sheet metal cup,

shown in Fig. 3, into a hexagonal shaped nut K blank, third step.

Fig. 5 is a vertical sectional View through dies which unch out the bottom of the nut blank, fourtli step.

Fig. 6 is a side view of the lower end of the upper die member, shown in Fig. 1, tor ormin the nut blank.

Fig. gis a castellated end view of the completed castellated nut, and Fig. 8 is a sectional View through the nut taken on line 8. 8 of Fig. 7, the screw-thread- .ing of which is the'ifth and final step. Se vAs shown in Fig. 3 the upper die may also Specication of Letters Patent.

Patented July 29, 1919@ application med January 9, 1919. serial No. 270,420.

have a. punch for punching out the bottom of the cup blank, thereby cupping and punching out the bottom of the cup m one ope-ration, thus eliminating step four, as shown in Fig. if desired.

In the drawing 9 indicates a sheet metal blank having a flat body portion 10 from which extend flat radial arms 11, 11. 12 a lower fixed die member having a cylindrical cavity 13 and a button hole 11. 15 an upper die member shaped to tit in the cavity 13 and having a. lower end 16, the lower and upper die members 12 and 15 being shaped to form the blank 9 into a cylindrical cup.

17 having a closed bott-om 18 and an open castellated end, as shown in Fig. 3, said cup 17 having a greater depth than the height of the completed castellated nut. 19 a lower die member having a cavity 2O shaped to form the outside of the nut blank and a closed bottom 21. 22 an upper die member shaped to fit in the cavity 20 and having the portion 23 shaped to Vform the castellations on the nut and the end 24 shaped to form the inside of the nut blank, as shown in Figs. 4 and 6. 25 a compressed nut blank having the closed bottom 18 and open castellated end, as shown in Fig; 4. 26 a lower die member having a cavity 27 shaped to receive the nut blank 25, and a central bottom hole 28. 29 an upper die member'having the punch end 30 for punching out the bottom 18 of the nut blank 25, as shown in Fig. 5, and 31 the completed castellated nut having the castellations 32, 32 and the central screw-threaded hole 33 as shown in Figs. 7 and 8.

My improved method of making castellated nuts is as follows: A blank 9 having a fiat body 10 and radial arms 11.11 is cut out of sheet metal by suitable dies. The blank is then placed in suitable cupping dies and cupped to form a comparatively deep cylindrical cup havin an o pen castellated end. The cup blank 1s then placed in suitable nut blank forming dies and the cup compressed into a castellated nut blank having a closed end. rIhe nut blank is then placed in suitable punching dies and the closed bottomvof the nut blank punched out. rIhe nut .blank is then internally screwthreaded, thereby completing a castellated nut.

By the use of my improved method of making castellated nuts a more perfect casnuts are greatly reduced.

Having thus described my invention I claim as new A 1. The method of making castellated nuts consisting in cutting out of sheet metal a blank having a body portion and radial arms on the body portion, forming the sheet met-al bla-nk into a cup having an open castellated end, condensing the cup into the form of a nut blank having a central hole, a closed bottom and a castellated end, punching out the closedbottoml of the nut blank, and then screw-threading the central hole in the nut blank.

2. The method of making castellated nuts consisting in cutting out of sheet metal a blank having a flat body with at radial arms, forming the sheet metal blank into a cup having `a castellated open end and punching the bottom out of the cup, compressing the cupped blank into the form of a nut havingfa central hole anda castellated end and then screw-threading the hole in the nut blank. v

In testimony whereof I have signed my name to this specication.

FERNANDO OSCAR JQUES, JR: 

